Sokil\Mongo\ExpressionTest::testWhereArraySize PHP Method

    public function testWhereArraySize()
    {
        $this->collection->createDocument(array('param' => array()))->save();
        $this->collection->createDocument(array('param' => array('value1')))->save();
        $documentId = $this->collection->createDocument(array('param' => array('value1', 'value2')))->save()->getId();
        $this->collection->createDocument(array('param' => array('value1', 'value2', 'value3')))->save();
        // find all rows
        $document = $this->collection->find()->whereArraySize('param', 2)->findOne();
        $this->assertNotEmpty($document);
        $this->assertEquals($documentId, $document->getId());
    }